#include <stdio.h>
#include <stdlib.h>

int main()
{
    int number,i,j,k,l;
    printf("Please enter a number = ");
    scanf("%d",&number);
    for(i = 1;i<number/2;i++)
    for(j = 0;j<=i;j++)
    for(k = 0;k<=j;k++)
    for(l = 0;l<=k;l++)
    if(number == i*i + j*j + k*k + l*l)
    {
        printf(" %d = %d*%d + %d*%d + %d*%d + %d*%d\n",number,i,i,j,j,k,k,l,l);
        exit(0);
    }
}